Book SF discount protection later before the downgrading is possible?

Good day, a few weeks ago, I had returned my old leasing vehicle (insurance with insurance A). As part of the return, an expensive damage was detected, which was handled through the UK. I had no discount protection with insurance A. Shortly before the lease return I had bought a new car, which was insured with insurance B again with insurance B without discount protection. In other words insurance B ran parallel and the SF classes of the Vers insurance B offers an accruable discount protection. Apparently, insurance B has not yet learned about the damage via insurance A. At least I have not yet received an SF-class adjustment or downgrading. But the downgrading will certainly come to 01.01.2023 or in September 2023. Now I came up with the idea that I have to adjust my contract with insurance B again and book the discount protection with it. This will be I would also benefit from the November offers in the future. In terms of calculation, the booking of the discount protection would be profitable compared to the downgrading. I find unfortunately nothing by search engine to such a case. Can you tell me if my project is so feasible or it is already too late to intercept the downgrading?